Hsün Tzu was an eminent Legalist. The book Hsün Tzu fully reflects his Legalist thought. In the decisive period of great social change at the end of the Warring States period he stood in the front ranks of the age and created a great deal of public opinion in favor of the replacement of the slave system by the feudal system; he "disclosed the past, set forth the present, dispersed disorder, and propagated reason as easily as turning over his hand" (...) , creating a thick foundation of theory for the Legalist line and manifesting the vital and vigorous fighting spirit of the newly rising landlord class. (shrink)